meta: add v8 team

PR-URL: #38566
Reviewed-By: Ujjwal Sharma <ryzokuken@disroot.org>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

Author: gengjiawen

.github/CODEOWNERS

@@ -114,3 +114,7 @@
 /lib/internal/bootstrap/* @nodejs/startup
 /tools/code_cache/* @nodejs/startup
 /tools/snapshot/* @nodejs/startup
+
+# V8
+/deps/v8/* @nodejs/v8-update
+/tools/v8_gypfiles/* @nodejs/v8-update